Eroare de compilare: user.cpp: In function ‘void add(int)’: user.cpp:72:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<edge[vert].size();i++) ^ user.cpp:76:13: error: reference to ‘next’ is ambiguous next.push( edge[vert][i].first ); ^ user.cpp:68:48: note: candidates are: std::priority_queue<int, std::vector<int>, comp> next priority_queue < int , vector < int > , comp > next; ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:66:0, from /usr/include/c++/4.8/bits/char_traits.h:39, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/ostream:38, from /usr/include/c++/4.8/iostream:39, from user.cpp:51: /usr/include/c++/4.8/bits/stl_iterator_base_funcs.h:184:5: note: template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type) next(_ForwardIterator __x, typename ^ user.cpp: In function ‘int main()’: user.cpp:89:17: error: reference to ‘next’ is ambiguous cost[1]=0; next.push(1); ^ user.cpp:68:48: note: candidates are: std::priority_queue<int, std::vector<int>, comp> next priority_queue < int , vector < int > , comp > next; ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:66:0, from /usr/include/c++/4.8/bits/char_traits.h:39, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/ostream:38, from /usr/include/c++/4.8/iostream:39, from user.cpp:51: /usr/include/c++/4.8/bits/stl_iterator_base_funcs.h:184:5: note: template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type) next(_ForwardIterator __x, typename ^ user.cpp:90:11: error: reference to ‘next’ is ambiguous while(next.size()) ^ user.cpp:68:48: note: candidates are: std::priority_queue<int, std::vector<int>, comp> next priority_queue < int , vector < int > , comp > next; ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:66:0, from /usr/include/c++/4.8/bits/char_traits.h:39, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/ostream:38, from /usr/include/c++/4.8/iostream:39, from user.cpp:51: /usr/include/c++/4.8/bits/stl_iterator_base_funcs.h:184:5: note: template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type) next(_ForwardIterator __x, typename ^